Filament positioning control device for composite spinning of filaments and staple fibers

ABSTRACT

A filament positioning control device for composite spinning of filaments and staple fibers comprises a fixed shaft and a hollow shaft mounted thereon. Left and right spiral wheels with left and right spiral grooves are mounted on the hollow shaft. Left and right positioning plates are provided on outer sides of left and right spiral wheels, each having a guide pin engaged in a spiral groove. Each positioning plate has a guide block engaged in a guide rail. As the hollow shaft is rotated, the spiral wheels rotate accordingly and the guide pins on the left and right positioning wheels move along with the spiral grooves. Because spiral grooves on two spiral wheels have different directions, when the spiral wheels rotate, the distance between positioning grooves on the two positioning plates increases or decreases, thereby changing the distance between two filaments guided by grooves on the positioning plates.

TECHNICAL FIELD

The invention relates to a kind of yarn spinning engineering positioncontroller, which refers to the textile industry for a filamentpositioning control device using the composite filament staple spinningon a ring spinning machine.

TECHNICAL BACKGROUND

There is a filament and staple fibers spinning project in our nationalscience and technology support programs. The key points of the technicalproject is composed of two strands of filaments and two strands of shortfibers composite yarn spinning, which relates to the filaments andstrands must keep a certain distance between. General manufacturers areusing a fixed type filament positioning device to ensure that thedistance between the filament, processing two V groove of d1 and d2 in awheel. The distance between d1 and d2 is fixed at 20 mm, d3 positioningaxle is fixed in the cradle of the spinning machine, see FIG. 2.

According to the principle of the filament and staple fibers spinning,the distance between the filaments and strands adjustments with sliverof short fiber length. If the distance between the two is much larger,the short fibers is much easier to escape from the strands. On thecontrary, if the distance between the two is too small, strand wrappedfilament angle and density is not the same, and yarn properties willchange along with. Obviously, a yarn fixed device can only adapt to acertain length of the raw material.

DESCRIPTION OF THE INVENTION

The technical problem to be solved is to provide a special filamentpositioning distance device, which adjusts the distance betweenfilaments and short fibers according to the material length and yarnfilament and staple fiber requirements in the filament and staple fibersin spinning production.

Technical proposal adopted by the invention to solve technical problemsis: Filament positioning control device of a filament and staple fibersincludes the guide rail assembly and the regulating assembly fixed bythe cradle of spinning machine.

Guide rail assembly is provided with a cradle fixed by screw and a guiderail and the two ends of the guide rail are installed by fixed bearingseats. The regulating assembly comprises a fixed shaft with a screwthread at the end, located between two fixed bearing seats. A fixedshaft is to be sheathed with a hollow shaft. Symmetrical left and rightspiral helical wheels are set by the hollow shaft. The left and rightspiral helical wheels are set by screws through the screw holes andhollow shaft together; Left and right helical wheels outer cover leftpositioning plate and right positioning plate with a positioning groove.Guide pin on each of the left and the right positioning plates falls inone of the left, right spiral grooves of the helical wheels. The guideblocks connected with the left positioning plate, right positioningplate fall in the base frame rail assembly; One end of the hollow shaftis provided with an adjusting ring, and the other end is provided with alock nut, The hollow shaft is also fixed with an adjusting band wheel,when turning the adjusting hand wheel, the left and right spiral helicalwheels move. Helical grooves of left and right helical wheels promotethe movement of the guide pins on the left and right positioning plates.Left and right positioning plates move axially in the guide block underthe action of the left and right positioning plates; Due to the oppositedirection of the right and left helical grooves in the left and righthelical wheels is rotated, the left and right positioning plates doopposite or contrary to the movement. The distance between the left andright positioning grooves on the positioning plates is reduced orincreased, and the distance between the filaments and short fibers isrequired to change. When adjusted to the desired position, a lock nut onthe positioning nail is set to prevent the left and right spiral wheelsfrom rotation in order to guarantee the accuracy of the distance. Thelock nuts on the left and right helical wheels can be loosened to adjustthe retaining ring. The hollow shaft can move around, so that the centerof the left positioning plate and the right positioning plate coincideswith the center the spinning machine spindle, and then the lock nut islocked.

The adjustment hand wheel has engraved scale, displaying the centerdistance between the locating slot on the left-right positioning plates.

Compared with the positioning means of the existing fixed-pitch, thepresent invention has the following beneficial effects:

-   1. The distance between filaments can be adjusted according to the    needs of the process.-   2. The dial can visualize the distance between the filaments.-   3. The relative position of the center of the positioning grooves    and the spinning machine spindle center to accommodate the different    spindle pitch of the spinning frame can be adjusted within a certain    range.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural view of the existing fixed positioningwheel.

FIG. 2 is a schematic view of the filament short fiber compositespinning.

FIG. 3 is a schematic block diagram of the present invention.

FIG. 4 is a schematic block diagram of the base frame rail assembly.

FIG. 5 is a schematic structural view of the adjustment assembly.

FIG. 6 is a spinning frame of the present invention in schematic view.

REFERENCE NUMERALS

-   1—guide rail 2—set bolt 3—fixed bearing seat-   4—lock nut 5—left positioning plate 6—guide pin-   7—left helical wheel 8—hollow shaft 9—right helical wheel-   10—set screw 11—screw hole 12—fixed shaft with threaded end-   13—fixed bearing seat hole 14—adjustment retaining ring    15—adjustment wheel-   16—right positioning plate 17—left spiral groove 18—right spiral    groove-   19—guide block 20—base frame screw holes 21—retaining holt-   a1—cradle of spinning machine-   a2—front leather roller of spinning machine-   a3—front roller of spinning machine-   b1—left staple fiber segment-   b2—right staple fiber segment-   c1—left filament c2—right filament-   d1—current fixed type filament positioning wheel left V groove-   d2—current fixed type filament positioning wheel right V groove-   d3—positioning shaft

EMBODIMENTS FOR CARRYING OUT THE INVENTION

Implementation of the device is shown in FIGS. 3 and 6.

Through the rack screw hole 20, base frame rail assemblies are fixedwith the retaining bolt 21 and the spinning frame cradle a1 altogether.Fixed bearing seat 3 through a set bolt 2 and fixed bearing seat hole 13is fixed with guide rail 1. A fixed shaft 12 with a threaded end ismounted between two fixed bearing sets 3. A guide block 19 connectedwith the left and right positioning plates 5, 16 falls in the guide rail1. Hollow shaft 8 is sheathed on the fixed shaft 12, and the left andright helical wheels 7, 9 are mounted on the hollow shaft 8 by setscrews 10 through the screw holes 11. The left and right positioningplates 5, 16 are separately mounted on the outer sides of the left andright spiral wheels 7 and 9. The guide pin 6 on each of the left andright positioning plates 5, 16 falls within the left helical groove 17and the right helical groove 18.

Filaments c1 and c2 enter into the front jaw of the spinning framethrough the positioning grooves on the left and right positioning plates5, 16 and then separately combined with the short fibers b1 and b2.

Rotating the adjustment hand wheel 15 mounted in the hollow shaft 8causes the left and right helical wheels 7, 9 to rotate. Due to theleft, the right spiral grooves 17, 18 on the helical wheels being indifferent directions, as the helical wheel is rotated, the guide pins 6on the left and right positioning plate 5, 16 move along with the leftand right spiral grooves 17, 18, and the guide pins 6 connected to theleft and right positioning plate 5, 16 do inward or outward movement.The distance between the positioning grooves on the left and rightpositioning plates 5, 16 decreases or increases, thereby changing thedistance between filament c1 and c2 and the short fibers b1 and b2. Themoved distance can be indicated by the engraved scale on the adjustmenthand wheel 15. After the adjustment is in place, the positioning pin onthe locking nut 4 can be set to prevent the rotation of the left andright helical wheels 7, 9.

If the center of the fibers c1, c2 and spinning machine spindle centerdo not coincide, it is possible to loosen the lock nut 14 and adjust theadjustment retaining ring 14 to move the hollow shaft 8 around until thecenter of filaments c1, c2 coincides with the center of the spinningmachine spindles, then the locking nut 4 on the threaded end of thefixed shaft 12 is fastened to prevent the hollow shaft 8 from movingalong the shaft.

1-2. (canceled)
 3. A method for adjusting a distance between a firstpositioning plate (5) and a second positioning plate (16) in a filamentpositioning control device, said method comprising: providing a firstguide pin (6) on the first positioning plate (5) and a second guide pin(6) on the second positioning plate (16); providing a first spiral wheel(7) comprising a first spiral groove (18) and a second spiral wheel (9)comprising a second spiral groove (17); engaging the first guide pin (6)in the first spiral groove (18) and the second guide pin (6) in thesecond spiral groove (17), the first and second spiral wheels (7, 9)arranged for simultaneous rotation about a shaft (12) in a firstdirection or an opposing second direction, wherein when the first andsecond spiral wheels (7, 9) are rotated in the first direction, thefirst and second spiral grooves (18, 17) cause the first and secondpositioning plates (5, 16) to move towards each other, and when thefirst and second spiral wheels (7, 9) are rotated in the seconddirection, the first and second spiral grooves (18, 17) cause the firstand second positioning plates (5, 16) to move away from each other. 4.The method according to claim 3, wherein the first and second spiralwheels (7, 9) are secured on a cylindrical member (8) mounted over theshaft (12), the cylindrical member (8) configured to rotate about theshaft (12) for rotating the first and second spiral wheels (7, 9) andchanging the distance between the first positioning plate (5) and thesecond positioning plate (16).
 5. The method according to claim 3,wherein each of the first and second positioning plates (5, 16)comprises a positioning groove configured to position a filament (c1,c2) for spinning.
 6. The method according to claim 4, wherein thefilament position device comprises a guide rail assembly comprising aguide rail (1) and two mounting seats (13) for fixedly mounting theshaft (12) substantially parallel to the guide rail (1), and whereineach of the first and second positioning plates comprises a guide block(19), said method comprising: engaging the guide block (19) of the firstpositioning plate (5) and the guide block (19) of the second positioningplate (16) to the guide rail (1) so as to allow the first and secondpositioning plates (5, 16) to move relative to each other when thecylindrical member (8) is caused to rotate.
 7. The method according toclaim 6, wherein the first positioning plate (5) comprises a positioninggroove configured to position a first filament (c1) and the secondpositioning plate (16) comprises a positioning groove configured toposition a second filament (c2) for spinning with spinning with staplefibers (b1, b2) and wherein the distance between the first and secondpositioning plates (5, 16) dictates a distance between the staple fibers(b1, b2) and the first and second filaments (c1, c2).
 8. The methodaccording to claim 7, further comprising: fastening the cylindricalmember (8) for preventing the first and second positioning plates frommovement when the distance between the staple fibers (b1, b2) and thefirst and second filaments (c1, c2) has been adjusted.
 9. The methodaccording to claim 7, further comprising: providing an adjustment wheel(15) on the cylindrical member (8), the adjustment wheel (15) arrangedto cause the first and second spiral wheels (7, 9) to rotate in thefirst direction or the second direction.
 10. The method according toclaim 9, wherein the adjustment wheel (15) comprising a scale toindicate a moved distance between the first and second positioningplates (5, 16).
 11. A filament positioning control device for use incomposite spinning of filaments and staple fibers, comprising: a firstspiral wheel (7) comprising a first spiral groove (18); a second spiralwheel (9) comprising a second spiral groove (17); a first positioningplate (5) comprising a first guide pin (6) arranged for engagement inthe first spiral groove (18); a second position plate (16) comprising asecond guide pin (6) arranged for engagement in the second spiral groove(17), wherein the first spiral wheel (7) and the second spiral wheel (9)are arranged for simultaneous rotation about a shaft (12) in a firstdirection or in an opposing second direction such that when the firstand second spiral wheels (7, 9) are caused to rotate in the firstdirection, the engagement of the first guide pin (6) in the first spiralgroove (18) and the engagement of the second guide pin (6) in the secondspiral groove (17) cause the first and second positioning plates (5, 16)to move towards each other, and when the first and second spiral wheels(7, 9) are caused to rotate in the second direction, the engagement ofthe first guide pin (6) in the first spiral groove (18) and theengagement of the second guide pin (6) in the second spiral groove (17)cause the first and second positioning plates (5, 16) to move away fromeach other.
 12. The filament positioning control device according toclaim 11, further comprising: a cylindrical member (8) mounted over theshaft (12), the cylindrical member (8) configured to rotate over theshaft (12) for rotating the first and second spiral wheels (7, 9) andchanging a distance between the first and second positioning plates (5,16).
 13. The filament positioning control device according to claim 11,wherein each of the first and second positioning plates comprises aposition groove configured to position a filament (c1, c2) for spinning.14. The filament positioning control device according to claim 12,further comprising: a guide rail assembly comprising a guide rail (1)and two mounting seats (3) for fixedly mounting the shaft (12)substantially parallel to the guide rail (1), wherein each of the firstand second positioning plates (5, 16) comprises a guide block (19)configured for engagement with the guide rail (1) so as to allow thefirst and second positioning plates (5, 16) to move relative to eachother when the cylindrical member (8) is caused to rotate.
 15. Thefilament positioning control device according to claim 14, wherein thefirst positioning plate (5) comprises a positioning groove configured toposition a first filament (c1) and the second positioning plate (16)comprises a positioning groove configured to position a second filament(c2) for spinning with staple fibers (b1, b2), and wherein the distancebetween the first and second positioning plates (5, 16) dictates adistance between the staple fibers (b1, b2) and the first and secondfilaments (c1, c2).
 16. The filament positioning control deviceaccording to claim 14, wherein the guide rail assembly is fixedlyattached to a cradle (a1) of a spinning machine.
 17. The filamentpositioning control device according to claim 15, wherein the spinningmachine comprises a spindle center, and wherein the cylindrical member(8) is configured for axial movement along the shaft (12) for adjustinga center between the first and second (c1, c2) such that the centerbetween the first and second (c1, c2) coincides with the spindle center,said control device further comprising: a retaining ring (14) arrangedto move the cylindrical member (8) along the shaft (12) for saidadjusting; and a fastener (4) arranged to fasten the cylindrical member(8) to the shaft (12) so as to prevent the cylindrical member (8) frommoving along the shaft (12).
 18. The filament positioning control deviceaccording to claim 15, further comprising an adjustment wheel (15)mounted to the cylindrical member (8), the adjustment wheel (15)arranged to cause the first and second spiral wheels (7, 9) to rotate inthe first direction or the second direction.
 19. The filamentpositioning control device according to claim 18, wherein the adjustmentwheel (15) comprising a scale to indicate a moved distance between thefirst and second positioning plates (5, 16).